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Finding the Fourth Proportional to 56,609.80, 84,914.70 and 23,318.80

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Solution

The fourth proportional to 56,609.80, 84,914.70 and 23,318.80 is: 34,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,609.80 : 84,914.70 = 23,318.80 : x
  2. Step 2: Convert to fraction form
    56,609.80/84,914.70 = 23,318.80/x
  3. Step 3: Cross multiply
    56,609.80x = 84,914.70 × 23,318.80
  4. Step 4: Simplify right side
    56,609.80x = 1,980,108,906.36
  5. Step 5: Solve for x
    x = 1,980,108,906.36/56,609.80
  6. Step 6: Final answer
    x = 34,978.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.